Abstract The crystal structure of dicyclopentadienylvanadium (III) monochloride,(η 5-C 5 H 5) 2 VCl, has been solved by the X-ray diffraction heavy atom method. The compound crystallizes in the orthorhombic space group Ama2 with cell parameters a 9.134 (8), b 13.522 (10), and c 7.484 (6) Å; ϱ obs 1.55 (1) g/cm 3, ϱ calc 1.56 g/cm 3 for Z= 4. Full matrix least squares refinement based on 760 reflections lead to agreement factors of R= 0.054 ...